South Carolina CDL Practice Test: Double and Triples - Test 5 2026
Based on
2026 SC CDL Handbook
Instruction: To obtain this endorsement for pulling two or three trailers, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the SC CDL Handbook. The Double/Triple trailers endorsement can be used with the Class A CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at South Carolina DMV locations.
4. Automatic slack adjusters ________.
A
Only need to be checked during warm weather.
B
Need to be checked regularly.
C
Do not need to be checked.
D
None of the listed answers.